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Lightweight HollowTech II 105 10-speed chainset
Innovative HollowTech forged and anodised aluminium crank
arms utilise a hollow design that minimises flex and keeps
the weight low.
The chainring teeth have been developed to work in conjunction
with the CN-5701 chains for increased contact to provide greater
efficiency and improved power transfer.
HollowTech II allows the bottom bracket bearings to be spaced
wider apart (outboard from the frame), enabling the use of
larger bearings and an increased axle diameter.
The system allows for easier installation, adjustment, and
maintenance.
Lightweight anodised SG-X aluminium chainrings for smooth
and precise shifting.
For use with ST-5703, ST-6700
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